Ideal for storage and transportation of specimens 3 walled Specimen bags are 2 mil thick and made from LDPE Used in doctor's office, laboratories and hospitals Document pouch keeps the paperwork with specimen Available in 2 wall as well as 3 wall bags Check boxes printed on bags for storage description Offers protection against dust and moisture Perfect Count and High Quality Inner packed in quantities of 100's Use for variety of purposes Meets federal and state regulations High quality zip protects the products UPS, USPS, FEDEX Approved Economical and Eco-Friendly Specimen Bags are available in different sizes